KR940008243B1 - Heating & cooking apparatus with a temperature sensor - Google Patents

Abstract

The control method prevents automatic fire extinguishing by a temperature cut mode. The method includes the steps of: detecting if a sensing temperature Tn of the temperature sensor is increasing over a measurement start temperature, and if increasing, after a given time, remembering the Tn; judging if measuring values more than five values are remembered and if remembered, getting a first temperature difference if it is more than a standard temperature difference, and avoiding a temperature cutting by a judgement of the pot shaking; and getting a second temperature difference, if it is more than 0 deg.C and if the Tn is more than a selected cut temperature Ts, processing the automatic fire extinguishing, and if the second temperature difference is not more than 0 deg.C or if the Tn is not over the Ts, returning to removing the Tn-4.

Description

Control method of heating cooker with temperature sensor

1 is a schematic diagram showing the main part of a tabletop with a temperature sensor according to the first embodiment;

2 is a perspective view of a tabletop with a temperature sensor according to the first embodiment.

3 is a graph showing the relationship between the detected temperature of the temperature sensor and the elapsed time according to the first embodiment.

4 is a flowchart of operation of the computer according to the first embodiment.

5 is a flowchart showing the operation of the computer according to the second embodiment.

6 is a schematic view showing the main parts of a table stove with a temperature sensor according to a third embodiment.

7 is a graph showing the relationship between the detected temperature of the temperature sensor and the elapsed time according to the third embodiment.

8 is a flowchart showing operation of a computer according to the third embodiment.

9 is a flowchart showing operation of the computer according to the fourth embodiment.

10 is a cross-sectional view of a modified example of a tabletop furnace equipped with a temperature sensor.

* Explanation of symbols for main parts of the drawings

1: Table cooker with temperature sensor (heating cooker)

2: gas burner (heating means) 3: gas supply passage (fuel supply passage)

4 gas connection (opening and closing means) 5 computer (control means)

6: cooking pot 8: temperature sensor

10: measuring circuit (measuring means) 11: memory circuit (memory means)

20: measuring circuit (measuring means) 21: memory circuit (memory means)

The present invention relates to a control method of a heating cooker equipped with a temperature sensor for sensing the temperature of the cooking pot.

In a conventional cooker equipped with a temperature sensor, the temperature sensor is brought into contact with the bottom of the cooking pot to sense the temperature of the cooking pot, and when the temperature detected by the temperature sensor rises above the cut temperature, the fuel supply is closed by closing the shutoff valve. It is possible to set a temperature cut mode for the purpose of preventing overheating of cooking pots and overheating of cooking pots by blocking and extinguishing.

However, in a conventional heating cooker equipped with a temperature sensor, if the burning flame of the burner fluctuates due to the vibration of the pot when the cooking pot is lifted while the cooking pot is in use, the sensing temperature of the temperature sensor may suddenly rise above the cut temperature. There is this.

In this case, even if the temperature of the cooking pot has not yet risen to the cut temperature, there is a problem in that the temperature cut mode is operated to close the shutoff valve and extinguish the fire automatically.

Therefore, it was considered possible to change the pot by delaying the temperature cut until the sensing temperature of the temperature sensor reaches the cut temperature for a predetermined time (for example, 10 seconds), but in this case until the pot is not vibrated. There is an unreasonable problem of lagging and overheating of the cooking pot.

An object of the present invention is to automatically determine whether a pot is vibrating, and to control a fire cooker equipped with a temperature sensor which prevents automatic extinguishing by a temperature cut mode during pot vibration and improves arbitrary operation.

In one embodiment of the present invention, the heating means for heating the cooking pot as the fuel burns, the opening and closing means installed in the fuel supply path for supplying fuel to the heating means, and the temperature sensor for sensing the temperature of the cooking pot And a control means capable of cutting a temperature when the temperature sensed by the temperature sensor rises above the cut temperature to cut the fuel supply path by controlling the opening and closing means, wherein the control means comprises: the temperature sensor Measuring means for measuring the detected temperature at regular intervals and a storage means for storing the detected temperature measured by the measuring means, and avoiding the temperature cut when the temperature difference based on the measured temperature measured is larger than the reference temperature difference. Adopted technical means.

In another embodiment of the present invention, the heating means for heating the cooking pot as the fuel burns, the opening and closing means installed in the fuel supply path for supplying fuel to the heating means, and the temperature sensor for sensing the temperature of the cooking pot And a temperature control means capable of cutting the fuel supply path by controlling the opening and closing means when the temperature sensed by the temperature sensor rises above the cut temperature, and the control means includes the temperature sensor. And a measuring means for measuring the detected temperature at a predetermined time and a storage means for storing the detected temperature measured by the measuring means, and calculating a target temperature after a predetermined time from the temperature rise rates of the measured plurality of detected temperatures. The number of techniques to avoid the temperature cut when the temperature difference between the sensed temperature measured after time and the target temperature is larger than the reference temperature difference. Adopted stage.

According to an embodiment of the present invention, if the temperature difference of the detected temperature of the temperature sensor is greater than the reference temperature difference every measured time, it is determined that the pot is moved to avoid the temperature cut, for example, the detected temperature of the temperature sensor is greater than the cut temperature. The rise does not block the fuel supply.

On the contrary, when it is small, it is determined that the cooking pot is in normal use, and when the sensing temperature of the temperature sensor rises above the cut temperature, the fuel supply passage is blocked by controlling the opening and closing means.

Another embodiment of the present invention calculates the target temperature after a predetermined time at the temperature rise rate of the plurality of sensing temperatures measured, and moves the pot if the temperature difference between the detected temperature and the target temperature measured after a predetermined time is greater than the reference temperature difference. It is judged that the temperature cut is avoided and, for example, the fuel supply path is not blocked even if the temperature detected by the temperature sensor rises above the cut temperature.

On the contrary, when it is small, it is determined that the cooking pot is in normal use, and when the sensing temperature of the temperature sensor rises above the cut temperature, the fuel supply passage is blocked by controlling the opening and closing means.

The heat cooker with the temperature sensor of the present invention will be described in detail with reference to FIGS. 1 to 9.

1 to 4 are exemplary views of claim 1 of the present invention.

FIG. 1 is a schematic diagram showing the main part of a table stove with a temperature sensor, and FIG. 2 is a perspective view showing a table stove with a temperature sensor.

The table furnace 1 with a temperature sensor is a heating cooker with a temperature sensor of the present invention, and includes a gas burner 2, a gas supply path 3, an electronic gas valve 4, and a computer 5. .

The gas burner 2 heats the cooking pot 6 by burning the mixer which mixed fuel gas and combustion air as a heating means of this invention.

The gas supply passage 3 supplies fuel gas to the gas burner 2 as the fuel supply passage of the present invention. The gas valve 4 is provided in the gas supply passage 3 as the opening and closing means of the present invention, and keeps the valve open during energization (on), and closes the valve when the energization is interrupted (off).

As the control means of the present invention, the computer 5 contacts the bottom surface of the cooking pot 6 with the ignition fire button 7 for igniting and extinguishing the gas burner 2 and the bottom surface of the cooking pot 6. Temperature sensor 8 such as a thermistor which senses temperature, selection of set and reset of temperature cut mode, and cut temperature Ts of multiple stages of temperature cut mode (high cut temperature, high cut temperature and low cut temperature) Is connected to a setter 9 or the like for arbitrarily selecting.

The computer 5 incorporates the measurement circuit 10, the memory circuit 11, the calculation circuit 12, and the determination circuit 13. The measuring circuit 10 is a measuring start temperature Tf (e.g., 230 deg. C) lower than the cut temperature Ts (e.g., high cut temperature 250 deg. C) selected by the setter 9 as the measuring means of the present invention. As a result, the sensing temperature Tn of the temperature sensor 8 is measured every predetermined time (for example, 1 second) from the time when the sensing temperature of the temperature sensor 8 rises.

The memory circuit 11 stores the sensed temperature Tn of the temperature sensor 8 for each constant time measured by the measuring circuit 10 as the memory means of the present invention.

The calculation circuit 12 calculates the first temperature difference ΔT1 between the maximum value Tmax and the minimum value Tmin of the five latest measurement values measured by the measurement circuit 10, and at the same time, the fifth measurement value Tn and It is determined whether or not the second temperature difference ΔTs (e.g., 10 ° C) is greater than or equal to the first measurement value Tn-4, as well as whether the second temperature difference ΔT2 is greater than 0 ° C or more. .

According to the experimental results of the temperature rise rate of the sensing temperature of the temperature sensor (8) according to the experimental results, the temperature of the sensing temperature of the temperature sensor (8) rises for 5 seconds is 6.5 ℃ when the cooking pot (6) empty, cooking pot ( 6) If oil enters, temperature rise below that.

When the pot is turned, the detected temperature of the temperature sensor 8 generally rises by 5 ° C or more for one second.

4 is a flowchart showing an example of the operation of the computer 5.

First, it is determined whether or not the temperature cut mode is set. (Step S1). When the temperature cut mode is not set (NO), step S1 is controlled.

When the temperature cut mode is set in step S1, for example, when the detection temperature of the temperature sensor 8 reaches 250 ° C. in the cut mode, the high cut mode for closing the gas valve 4 and automatically extinguishing is set (YES). The detection temperature Tn of the temperature sensor 8 determines whether or not the temperature rises above the measurement start temperature (e.g., 230 deg. C) (Tf), that is, whether Tn > Tf (step S2). When Tn? Tf (NO), control of step S1 is performed.

In step S2, when Tn? Tf (YES), it is determined whether or not a predetermined time (for example, 1 second) has elapsed at the time of the measurement of the detected temperature Tn (step S3). When the predetermined time has not elapsed (NO), control of step S3 is performed.

When a predetermined time has elapsed (YES) in step S3, the detected temperature Tn of the temperature sensor 8 is measured and stored (step S4). Next, it is determined whether or not five or more measurement values are stored (step S5).

When five or more measured values are not stored (NO), control of step S3 is performed.

In step S5, when five or more measured values are memorize | stored (YES), the 1st temperature difference (DELTA) T1 between the maximum value Tmax and the minimum value Tmin of five measured values is calculated | required (step S6), and the 1st temperature difference ( It is determined whether DELTA T1 is greater than or equal to the reference temperature difference DELTA Ts (e.g., 10 DEG C), that is, whether or not the temperature cut mode is set (step S1). When the temperature cut mode is not set (NO), step S1 is controlled.

When the temperature cut mode is set in step S1, for example, when the detection temperature of the temperature sensor 8 reaches 250 ° C. in the cut mode, the high cut mode for closing the gas valve 4 and automatically extinguishing is set (YES). The detection temperature Tn of the temperature sensor 8 determines whether or not the temperature rises above the measurement start temperature (e.g., 230 deg. C) (Tf), that is, whether Tn > Tf (step S2). When Tn? Tf (NO), control of step S1 is performed.

In step S2, when Tn? Tf (YES), it is determined whether or not a predetermined time (for example, 1 second) has elapsed at the time of the measurement of the detected temperature Tn (step S3). When the predetermined time has not elapsed (NO), control of step S3 is performed.

In step S2, when Tn? Tf (YES), it is determined whether or not a predetermined time (for example, 1 second) has elapsed at the time of the measurement of the detected temperature Tn (step S3). When the predetermined time has not elapsed (NO), control of step S3 is performed.

When a predetermined time has elapsed (YES) in step S3, the detected temperature Tn of the temperature sensor 8 is measured and stored (step S4). Next, it is determined whether or not five or more measurement values are stored (step S5).

When five or more measured values are not stored (NO), control of step S3 is performed.

In step S5, when five or more measurement values are memorize | stored (YES), the 1st temperature difference (DELTA) Ts of the maximum value Tmax and the minimum value Tmin of five measurement values is calculated | required (step S6), and the 1st temperature difference ( It is determined whether (DELTA) T1 is larger than the reference temperature difference (DELTA) Ts (for example, 10 degreeC), ie, whether (DELTA) T1≥ (DELTA) Ts (step S7). When ΔT1 ≧ ΔTs (YES), it is determined that the pot is moving and the temperature cut is avoided, and the oldest measured value Tn-4 is deleted (step S8). Then return.

In step S7, when ΔT1 ≥ ΔTs (NO), {5th measured value Tn}-{first measured value TN-4} = second temperature difference ΔT2 (step S9), It is determined whether or not the second temperature difference ΔT2 is equal to or higher than 0 ° C, that is, whether or not ΔT2 ≧ 0 ° C (step S10). When (DELTA) T2> 0 degreeC (NO), control of step S8 is performed.

In step S10, when DELTA T2 ≥ 0 ° C (YES), it is determined that the cooking pot 6 is in normal use, and the temperature cut mode is activated. Then, it is determined whether or not the detected temperature of the temperature sensor 8 rises above the cut temperature Ts (for example, 25 ° C), that is, whether Tn? Tf (step S11). When Tn? Ts (YES), the gas valve 4 is closed to extinguish automatically (step S12), and the control ends.

In step S11, when Tn> Ts (NO), control of step S8 is performed. It is determined whether or not? T1?? Ts (step S7). When ΔT1 ≧ ΔTs (YES), it is determined that the pot is moving and the temperature cut is avoided, and the oldest measured value Tn-4 is deleted (step S8). Then return.

In step S7, when ΔT1 ≥ ΔTs (NO), {measured value Tn of fifth)}-{first measured value Tn-4} = second temperature difference ΔT2 is determined (step S9), It is determined whether or not the second temperature difference ΔT2 is equal to or higher than 0 ° C, that is, whether or not ΔT2> 0 ° C (step S10). When (DELTA) T2> 0 degreeC (NO), control of step S8 is performed.

In step S10, when DELTA T2 ≥ 0 ° C (YES), it is determined that the cooking pot 6 is in normal use, and the temperature cut mode is activated. Then, it is determined whether or not the detected temperature of the temperature sensor 8 rises above the cut temperature Ts (for example, 25 ° C), that is, whether Tn? Ts (step S11). When Tn? Ts (YES), the gas valve 4 is closed to extinguish automatically (step S12), and the control ends.

In step S11, when Tn> Ts (NO), control of step S8 is performed.

Next, the operation of the table furnace 1 with the temperature sensor will be described with reference to FIGS. 1 to 3. First, when the gas valve 4 is opened by pressing the ignition button 7 and ignition is performed by an ignition device not shown, the gas burner 2 starts combustion.

Further, the setter 9 selects the set or reset of the temperature cut mode, selects the high cut mode or the low cut mode, and sets the cut temperature Ts.

The case where the high cut mode is selected will be described.

When the cooking pot 6 is heated by the gas burner 2, the sensing temperature of the temperature sensor 8 also increases.

Therefore, the sensing temperature Tn of the temperature sensor 8 exceeds the measurement start temperature Tf (for example, 230 degreeC).

As described above, when the detected temperature Tn of the temperature sensor 8 exceeds the measurement start temperature Tf, the detected temperature of the temperature sensor 8 is read out by the computer at a predetermined time (for example, for 1 second).

And when the measurement value reaches five, the computer 5 performs Formula 1 and Formula 2 shown in following formula, and determines whether the temperature cut mode is avoided.

Equation 1 ΔT2 = Tn- (Tn-4)

However,? T2 indicates the second temperature difference, Tn indicates the fifth most recent measurement value, and Tn-4 indicates the oldest first measurement value.

When the result of the determination of the computer 5 is large as the first temperature difference ΔT1 = 12 ° C is larger than the reference temperature difference ΔTs (e.g. 10 ° C) as shown by the solid line indicated by A in FIG. When it is determined that the temperature cut mode is avoided and, for example, the temperature rises above the high cut temperature of 250 ° C., the high cut (automatic fire extinguishing) for closing the gas valve 4 is not performed.

As a result, even if the burning flame is shaken by the pot moving and the sensing temperature Tn of the temperature sensor 8 rises above the cut temperature Ts, the gas valve 4 is not closed but the valve is opened and combustion is started. As a result, the convenience of use of the table stove 1 with a temperature sensor is improved.

When the determination result of the computer 5 is the dotted line indicated by B of FIG. 3, when the first temperature difference ΔT1 = 4 ° C is smaller than the reference temperature difference ΔTs (e.g. 10 ° C), the second temperature difference ( When ΔT2 = 4 ° C is larger than 0 ° C, it is determined that the cooking pot 6 is in normal use, and the temperature cut mode is activated, and the sensing temperature Tn of the temperature sensor 8 is cut temperature. As soon as it rises above (Ts) (for example, high cut temperature 250 degreeC), the gas valve 4 is closed and a high cut (automatic fire extinguishing) is performed.

Therefore, overheating of the cooking pot 6 is prevented, so safety is excellent.

In addition, when the low cut mode is selected to prevent sticking of stewed foods as the temperature cut mode, the same control as the low cut temperature (eg 130 ° C.) and the measurement start temperature (eg 80 ° C.) is performed. Pot transfer is possible without automatic fire extinguishing.

5 shows a second embodiment according to an embodiment of the present invention and the operation of the computer 5 is a flowchart showing an example. The same control as in the first embodiment is given the same number, and description is omitted.

If the measurement start temperature Tf is set to approximately the same temperature as the cut temperature, it is not necessary to determine Tn ≧ Ts in step S11.

That is, when it rises above the measurement start temperature Tf (for example, 245 degreeC), measurement of the detected temperature of the temperature sensor 8 is started, and 1st temperature difference (DELTA) T1> reference temperature difference (DELTA) Ts, Further, the temperature cut may be determined only by the determination of the second temperature difference (ΔT2? 0 ° C). In this case, the measurement start temperature Tf is preferably set to a temperature immediately before the cut temperature (for example, the high cut temperature of 250 ° C) (for example, 245 ° C).

6 to 8 show a third embodiment according to another embodiment of the present invention, and FIG. 6 is a schematic diagram showing the main parts of a table furnace with a temperature sensor attached thereto. And the same symbols as in the first embodiment represent the same.

The control device of this embodiment has a computer 5 for controlling the gas valve 4 in accordance with the output of the temperature sensor 8 and the setter 9.

This computer 5 incorporates a measuring circuit 20, a memory circuit 21, an arithmetic circuit 22, and a determination circuit 23.

The case where the high cut mode is selected by the setter 9 will be described.

The measuring circuit 20 is a measuring means according to the present invention. The temperature is measured every predetermined time (for example, 5 seconds) when the temperature detected by the temperature sensor 8 rises above the measurement start temperature Tf (for example, 200 ° C). The sensing temperature Th of the sensor 8 is measured.

The memory circuit 21 stores the sensed temperature (hereinafter referred to as measurement value) Th of the temperature sensor 8 for each predetermined time measured by the measurement circuit 20 as the memory means of the present invention.

The calculation circuit 22 calculates the target temperature Tm {ΔT + (Tn-1)} predicted from the temperature difference ΔT {= Tn-1)-(Tn-2) of the two previous measurements.

The limiting circuit 23 determines whether or not the temperature difference ΔTn between the target temperature Tm and the measured value Tn obtained by the calculation circuit 22 is greater than or equal to the reference temperature difference ΔTs (for example, ± 10 ° C). do.

In addition, as shown by the solid line C of FIG. 7, the computer 5 shows a case where the temperature difference ΔTn when the temperature cut mode is set is larger than the reference temperature difference ΔTs, that is, | ΔTn | In case of ≥ △ Ts, it is determined that the pot is moved and the temperature cut is avoided. For example, the sensing temperature Tn of the temperature sensor 8 is higher than the cut temperature Ts (e.g., high cut temperature 250 ° C). Even if it rises, the high cut (automatic fire extinguishing) which closes the gas valve 4 is not performed.

On the contrary, when the temperature difference ΔTn is smaller than the reference temperature difference ΔTs, that is, | ΔTn | <? Ts, it is determined that the cooking pot 6 is in normal use, as indicated by the solid line D in FIG. 7, and the detected temperature Tn of the temperature sensor 8 is cut temperature Ts (e.g., high). As soon as the temperature rises above the cut temperature of 250 ° C, a high cut (automatic fire extinguishing) is performed to close the gas valve (4).

When the low cut mode is selected as the temperature cut mode, the same control as the low cut temperature (for example, 130 ° C) and the measurement start temperature (for example, 90 ° C) is performed.

8 is a flowchart illustrating an example of computer operation.

First, it is determined whether or not the temperature cut mode is set (step S21). When the temperature cut mode is not set (NO), control of step S21 is performed.

In step S21, when the temperature cut mode is set, for example, when the detection temperature of the temperature sensor 8 reaches 250 deg. C in the cut mode, the high cut mode is set to close the gas valve 4 and automatically extinguish. (YES), the detected temperature Tn of the temperature sensor 8 determines whether or not the temperature rises above the measurement start temperature Tf (for example, 200 ° C), that is, whether Tn? Tf (step S22). When Tn> Tf (NO), control of step S21 is performed.

At step S22, when Tn? Tf (YES), it is determined whether or not a predetermined time (for example, 5 seconds) has elapsed at the time of the measurement of the detected temperature Tn (step S23). When the predetermined time has not elapsed (NO), control of step S23 is performed.

In step S23, when the fixed time has elapsed (YES), the detected temperature Tn of the temperature sensor 8 is measured and stored (step S24). Next, it is determined whether three or more measured values are stored (step S25). When three or more measurement values are not stored (NO), control of step S23 is performed.

When three or more measured values are stored in step S25 (YES), the target temperature Tm predicted by the temperature difference ΔT {= T + (Tn-1)-(Tn-2)} of the previous two measured values { = ΔT + (Tn-1)} (step S26), the temperature difference ΔTn between the target temperature Tm and the best measured value Tn (step S27), and the temperature difference ΔTn (e.g. ± 10 ° C.) or greater, that is, | ΔTn | It is determined whether or not ≧ ΔTs (step S28). | △ Tn | When ≥ ΔTs (YES), it is determined that the transfer is left and the temperature cut is avoided to delete the oldest measured value Tn-2 (step S29). Then return.

In step S28, | △ Tn | When not ≥ ΔTs (NO), it is determined that the cooking pot 6 is in normal use and the temperature cut mode is activated.

Then, it is judged whether or not the detected temperature of the temperature sensor 8 rises above the cut temperature Ts (for example, 250 ° C), that is, whether Tn? Ts (step S30). When Tn? Ts (YES), the gas valve is closed to extinguish automatic (step S31), and the control ends.

In step S30, step S29 is performed when Tn≥Ts (NO).

When oil or ingredients are put in the cooking pot 6, since the fluctuation of the sensing temperature Tn of the temperature sensor 8 is large, when the temperature difference ΔTn becomes equal to or higher than the reference temperature difference ΔTs at first. Except for the second, the temperature cut may be avoided.

In the third embodiment, after the third measurement value Tn is measured, and as a modification, when the temperature difference of the detected temperature of the temperature sensor measured at a predetermined time or the temperature difference between the detected temperature and the target temperature is larger than the reference temperature difference, The temperature cut is avoided without a time limit until the temperature difference becomes smaller than the reference temperature value, but when a predetermined time (for example, 15 seconds) has elapsed when the temperature difference reaches or exceeds the reference temperature difference or when the cut temperature is reached. The temperature cut may be avoided only until.

In the present embodiment, when the pot is stopped and the cooking pot is stopped while the temperature cut is avoided, the cooking pot is always determined to be smaller than the reference temperature difference, and the temperature cut mode is returned.

As a method of determining whether the cooking pot is stopped and putting the cooking pot again, it is determined by comparing the difference between the temperature difference and the reference temperature based on the detected temperature by the temperature sensor as in this embodiment, as shown in FIG. When the cooking pot 6 is placed, a limit switch 32 is installed separately to turn on (or off) the temperature sensor 8 being pushed down by the cooking pot 6 by the elastic force of the spring 31. You may also

According to this method, there is an advantage that it is possible to immediately determine whether or not the cooking pot 6 is placed even if the temperature difference is not determined to be smaller than the reference temperature difference.

The temperature cut mode may be cut in one step only for a predetermined temperature (for example, a high cut temperature of 250 ° C.).

In the case of the multi-stage temperature cut, only the highest hot cut temperature (for example, the high cut temperature of 290 ° C.) can be avoided even if the temperature cut is not avoided even when determined as a pot transfer in the present invention. Overheating can be prevented.

In addition, the present invention may be used for a heating cooker in which the temperature cut mode is operated without selecting the set and reset of the temperature cut mode.

In this embodiment, a gas burner for burning fuel gas is used as a heating means, but a burner using liquid fuel may be used.

In addition, although the thermistor was used as a temperature sensor in a present Example, you may use a thermocouple as a temperature sensor.

Therefore, the effect of the embodiment of the present invention is that if the temperature difference based on the sensed temperature of the temperature sensor is larger than the reference temperature difference, it is determined that the pot is moved to avoid automatic fire extinguishing by the temperature cut control.

On the contrary, in the small case, it is determined that the cooking pot is in normal use and automatic fire extinguishing by the temperature cut control is performed. As a result, even when the temperature cut mode is set, automatic fire extinguishing can be prevented at the time of pot transfer, and the convenience of use is improved.

In addition, the effect of another embodiment of the present invention is that if the temperature difference between the target temperature after a predetermined time at a temperature rise rate of the plurality of sensing temperatures detected by the temperature sensor is greater than the reference temperature difference, it is determined that the pot is transferred to the temperature cut control. Avoid automatic fire extinguishing. On the contrary, when it is small, it is determined that the cooking pot is in normal use, and automatic fire extinguishing by temperature cut control is executed. As a result, even when the temperature cut mode is set, automatic fire extinguishing can be prevented when the pot is being steamed, and the convenience of use is improved.

Claims (4)

Heating means for heating the cooking pot by burning fuel; Opening and closing means provided in a fuel supply passage for supplying fuel to the heating means; A temperature sensor for detecting the temperature of the cooking pot is provided at the same time as the measuring means and the storage means, and the opening and closing means are controlled when the temperature sensed by the temperature sensor rises above the cut temperature. In the control method of the heating cooker comprising a control means capable of cutting the cut temperature, if the temperature cut mode is set, it is detected whether or not the detected temperature (Tn) of the temperature sensor (8) rises above the measurement start temperature (Tf). If Tn ≥ Tf, the sensor detects the detected temperature Tn of the temperature sensor after a certain time at the time of measuring the detected temperature Tn, and then determines whether five or more measured values have been stored. If the above procedure is repeated, and five or more measured values are stored, the first temperature difference ΔT1 between the maximum value Tmax and the minimum value Tmin among the five measured values is obtained. If the first temperature difference ΔT1 is greater than or equal to the reference temperature difference ΔTs, it is determined to be a pot movement, and the temperature cut is avoided, and the oldest measured value Tn-4 is deleted, but if ΔT1 ≥ΔTs, It is determined whether or not the second temperature difference ΔT2 is equal to or higher than 0 DEG C by determining the conduction angle ΔT2, and when ΔT2 ≥ 0 DEG C and Tn ≥ Ts, the gas barb 4 is closed for automatic extinguishing. If △ T2 is not 0 ° C or more or Tn ≥ Ts state, the process of returning to the step of erasing Tn-4, comprising the step of returning to the control method of a heating cooker equipped with a temperature sensor. The method according to claim 1, wherein when the second temperature difference (ΔT2) is equal to or higher than 0 ° C, the gas valve (4) is immediately closed to extinguish the fire. Heating means for heating the cooking pot by burning fuel; Opening and closing means provided in a fuel supply passage for supplying fuel to the heating means; A temperature sensor for detecting the temperature of the cooking pot is provided at the same time as the measuring means and the storage means, and the opening and closing means are controlled when the temperature sensed by the temperature sensor rises above the cut temperature. In the control method of the heating cooker comprising a control means capable of cutting the cut temperature, if the detected temperature (Tn) of the temperature sensor 8 is more than the measurement start temperature (Tf) in the state that the temperature cut mode is set, the previously detected temperature ( In the measurement of Tn), after the predetermined time has elapsed, the process of memorizing the detected temperature (Tn) is repeated until three or more are memorized, and then the target temperature (Tm) predicted from the two measured temperature differences is obtained. Subsequently, the temperature difference (ΔTn) between the target temperature (Tm) and the best measured value (Tn) is obtained. If the temperature difference (| ΔTn |) is equal to or greater than the reference temperature difference (△ Ts), it is determined that the pot is moved and the temperature cut is avoided. Chapter but remove the old measurements (Tn-2), | ΔTn | If it is not ≥ △ Ts, it is determined that the cooking pot 6 is in normal use and Tn ≥ Ts is closed, so that the gas valve is closed for automatic fire extinguishing. . 4. The method of claim 3, wherein the gas valve is configured to automatically extinguish a gas valve if the temperature difference between the target temperature Tm and the best measured value Tn is not greater than the reference temperature difference ΔTs. Control method of a heating cooker with a temperature sensor characterized in that.